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What materials are used in a zinc-carbon battery?
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battery
Cutaway view of an alkaline–manganese dioxide power cell.
The zinc-carbon battery, also known as the Leclanché cell, is a traditional dry cell composed of several key materials:1
- Anode: The anode consists of a zinc alloy formed into a sheet or "can," which typically contains small amounts of lead, cadmium, and mercury.1
- Cathode: The cathode is made of impure manganese dioxide blended with carbon black and electrolyte. This mixture is formed around a central carbon collector rod, which serves as the electrode.1
- Electrolyte: The electrolyte is a saturated aqueous solution of ammonium chloride containing approximately 20 percent zinc chloride.1
These components are housed within an overwrap structure featuring metal covers to facilitate electrical contact.1